Home / 3,687.45-5,531.17-1,090.18

Finding the Fourth Proportional to 3,687.45, 5,531.17 and 1,090.18

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Solution

The fourth proportional to 3,687.45, 5,531.17 and 1,090.18 is: 1,635.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.45 : 5,531.17 = 1,090.18 : x
  2. Step 2: Convert to fraction form
    3,687.45/5,531.17 = 1,090.18/x
  3. Step 3: Cross multiply
    3,687.45x = 5,531.17 × 1,090.18
  4. Step 4: Simplify right side
    3,687.45x = 6,029,970.91
  5. Step 5: Solve for x
    x = 6,029,970.91/3,687.45
  6. Step 6: Final answer
    x = 1,635.27

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.